Hackball Share definition Flag A Hackball is usually a person absent from morals and is frequently seen enjoying breakfast with a can of Hackenberg That Ger fella is nothin only a Hackball, I seen him down the canal with a tray of Hack!!! Hackball by Deedong July 23, 2009 0 0 Get merch Get the Hackball mug. Buy Now — $32.95 See more merch